# Ch8 - *TI89*#BOOKS#R#Ch8# #Z# #'BEB#SSSS#H#0# # # #CH 8 -...

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**TI89**##BOOKS#############################################R###Ch8###########¥Z# ####'BEB#SSSS#######H###¾######################ÿÿÿþ##ÿÿÿý##ÿÿÿü##ÿÿÿû##ÿÿÿú##0##### ÿÿÿú####ÿÿÿû###############¦ÿÿÿý####ÿÿÿû###########¦####ÿÿÿü####ÿÿÿû###########®### #ÿÿÿþ####ÿÿÿû###########¶###¬CH 8 - DEFORMATION # Slip system: compare planar density for (100) (110) (111) FCC planes PD_110 = 1/(4R^2*sqrt(2) PD_100 = 2 atoms/8R^2 = 1/4R^2 PD_ 111: (4R)^2 = h^2 + (2R)^2 so h = 2*rt(3)*R and A = 1/2b*h so PD_111 = 2atoms/4*rt(3)*R^2 = 1/2R^3*rt(3) 2 Planar densities for (100) (110) (111) BCC planes PD_100: A=(4R/rt(3))^2 = 16R^2/e so PD_100 = 1atom/(16R^2/3) = 3/16R^2 PD_110: l = sqrt[4R^2 + (4R*rt(3))^2] = 4R*rt(2)/rt(3) so A = l*w = 16R^2*rt(2)/3 and PD_100 = 2 atoms/(16*R^2*rt(2))/3 = 3/(8R^2*rt(2)) PD_111: base diagonal = a*rt(2) = 4*rt(2)*R/rt(3) h (height of triangle in cube) = sqrt((.5d)^2+d^2) = rt(40/3)*R so A = 1/2*d*h and PD = 2atoms/A

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## Ch8 - *TI89*#BOOKS#R#Ch8# #Z# #'BEB#SSSS#H#0# # # #CH 8 -...

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